Year	Number
1960	269117
1961	276689
1962	284433
1963	291938
1964	299286
1965	305819
1966	311523
1967	317457
1968	323654
1969	330200
1970	337152
1971	344545
1972	352412
1973	360721
1974	369244
1975	377758
1976	386453
1977	395604
1978	405244
1979	415347
1980	426081
1981	437443
1982	449019
1983	460790
1984	472748
1985	484514
1986	496555
1987	508544
1988	520318
1989	531680
1990	541925
1991	513439
1992	482646
1993	500195
1994	517505
1995	557465
1996	592307
1997	591674
1998	591823
1999	591401
2000	595065
2001	616257
2002	644342
2003	680700
2004	717796
2005	736113
2006	745522
2007	754538
2008	778825
2009	803013
2010	821583
2011	840551
2012	854807
2013	868254
2014	874294
2015	876777
2016	884386
2017	896058
2018	916449
2019	940293
2020	966829
2021	996722
2022	1025862
2023	1054624